baber/WOPTO huggingface dataset:
Patent GB-874515-A (GB)
Title: Improvements in or relating to fluid pressure servomotor control systems for prime movers
IPC: F01D21/00
Filed: 1959-06-03
Abstract: 874,515. Fluid-pressure servomotor control systems. WESTINGHOUSE ELECTRIC CORPORATION. June 3, 1959 [June 10, 1958], No. 19825/59. Class 135. [Also in Group XXVI] In a control system for a prime mover utilizing elastic motive fluid the pressure of which varies inversely with the power of said prime mover, the steam admission valves 12 of the prime mover are controlled by a servomotor device 14 which selectively receives a pressure signal corresponding to the power output of the prime mover or a signal corresponding to the pressure of the elastic fluid. The reverse flow impeller 17 affords a fluid pressure signal indicative of the speed and power of the turbine 10. This signal is amplified by a relay device 18 and transmitted to a bellows 44 of a control unit 40 and to a check valve 64. The steam pressure immediately downstream of the throttle-valve 33 is transmitted to the spring-loaded bellows 46 of the control unit 40. The bellows 44 and 46 act in opposition on a pivoted lever 52 which controls a spring-loaded leak-off valve 54 connected by a line 57 to a check valve 62 located with the check valve 64 in the common manifold 35 and acting oppositely thereto. The arrangement is such that normally the pressure in the line 57 is lower than that in the line 34 so that the latter pressure is transmitted through the check valve 64 to the servomotor device 14 if, however, at any particular turbine speed and power, the steam pressure falls by more than a predetermined amount the lever 52 is moved clockwise to allow the valve 54 to close so that the pressure in the line 57 rises above that in the line 34 whereupon the higher pressure in line 57 passes through the check valve 62 to the power device 14 which operates to close the admission valves 12. Specification 525,724 is referred to.
Patent GB-279563-A (GB)
Title: Improvements in and relating to magazines for machine guns of the lewis type for firing blank ammunition
IPC: F41A9/74
Filed: 1926-07-30
Abstract: 279,563. Doyle, W., and Stapleton, D. J. July 30, 1926. Cartridge magazines; machine guns.-A drum magazine of the Lewis-gun type is adapted for blank cartridges having no bullets, such as are described in Specification 277,762, [Class 9 (i), Ammunition &c.], by providing a spring-pressed plate, bearing downwards on the cartridges, and a fixed retaining plate at the bottom. As shown, a plate C mounted in the rotating drum A is pressed downwards by volute springs C'. The retaining plate D is fixed to the centre-block B and has a large gap D', Fig. 1, opposite the outlet B<4> of the guide-groove in the centre-block. A curved sliding catch E is mounted on the plate and is adapted to be moved across the gap to retain the cartridges until the magazine is in position on the gun.
Patent GB-638817-A (GB)
Title: Improvements in or relating to winders for fishing lines
IPC: A01K97/16
Filed: 1948-07-15
Abstract: 638,817. Fishing. SANDERS, E. C. July 15, 1948, No. 18982. [Class 48] A fishing line holder comprises sheet metal side plates 11, 12. spacing members 14, 15, one or more eyes 19, 20 adapted to receive the hook of the line and carried by the spacing members, and one or more line-retaining members 24 which in conjunction with the side plates form an aperture in which the free end of the line may be wedged. The spacing members are integral with the eyes, and are formed from sheet metal. The retaining members are wire, and are clamped between an end of a spacing member and a side plate.
Patent GB-477698-A (GB)
Title: Improvements in borosilicate glasses highly resistant to alkaline liquids, and method of making same
IPC: D06M11/54
Filed: 1936-07-09
Abstract: 477,698. Glass manufacture. JENAER GLASWERK SCHOTT & GEN. July 9, 1936, No. 19030. Convention date, July 22, 1935. [Class 56] Borosilicate glass which resists attack by alkaline liquids, contains not more than 90 per cent of silica and other tetravalent oxides, not more than 10 per cent of alumina, not more than 10 per cent of alkali oxides, and 0À1-15 per cent of beryllium oxide, the content of trivalent and bivalent oxides other than beryllium oxide being 3-70 per cent, and the content of trivalent oxides amounting at most to 20 per cent. Preferably, the content of silica and other tetravalent oxides, such as titanium oxide or zirconium oxide, exceeds 50 per cent, the content of beryllium oxide does not exceed 5 per cent, and the content of bivalent oxides does not exceed 25 per cent, 0À5 per cent of titanium oxide may be included to increase the resistance to acids, and this may be replaced partly or wholly bv zirconium oxide or thorium oxide. The melting process can be facilitated by adding fluorides, or materials containing lithium or tungsten, to the batch. Composition of a number of glasses are given in the Specification.
Patent GB-191066-A (GB)
Abstract: 191,066. Andrieu, L. Dec. 30, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Watch stands.-The stand A is provided with a cylindrical cavity 1, which may have an ornamented front edge 3 and in which is frictionally held, by a blade spring 7, a tubular mount 4, at the front end of which is supported by lugs 5, the watch B. The mount 4 and the watch are inserted from the rear, the winding-knob of the watch passing along the longitudinal groove 2 at' the top of the cavity 1. The groove is closed at its front end to conceal the winding-knob.
Patent GB-404012-A (GB)
Title: Improvements relating to surgical sewing needles, dental instruments and the like
IPC: C22C19/00
Filed: 1932-07-06
Abstract: Surgical and dental instruments including sewing and other needles are made from quenched and tempered alloys containing 0.3-3 per cent of beryllium and at least 40 per cent of nickel. The alloys may also contain up to 25 per cent of iron, 10-25 per cent of chromium, up to 12 per cent of molybdenum, and up to 18 per cent of tungsten, with or without small additions of other elements.  The instruments are preferably heated and quenched before coldworking to their final dimensions, and tempered after coldworking.  The alloys may be quenched from 800-1100 DEG  C. and tempered at 350-650 DEG  C.
Patent GB-201560-A (GB)
Title: Improvements in centrifugal regulators suitable for electric motors
IPC: H02P25/18
Filed: 1923-07-25
Abstract: 201,560. Bethenod, J. July 25, 1922, [Convention date]. Drawings to Specification. Speed-maintaining systems.-In arrangements employing centrifugal governors for preserving constancy of speed of electric motors by acting upon resistance or impedance coils, the amount of resistance &c. subject to the centrifugal governor is varied either automatically or otherwise when loads of varying magnitude are imposed upon the motor. In addition electromagnetic forces are applied automatically to restore the moving part of the governor. The objects are to relieve the governor of unnecessary work and to diminish the amplitude of its fluctuations. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention is applicable to governors other than centrifugal, such as electrically operated regulators. This statement does not appear in the Specification as accepted.
Patent GB-220636-A (GB)
IPC: F01D1/02
Filed: 1924-08-13
Abstract: 220,636. Akt.-Ges. Brown, Boveri, et Cie, (Assignees of Forner, G.). Aug. 16, 1923, [Convention date]. Addition to 206,524. Drawings to Specification. Axial-flow type; nozzles.-In turbines using a slight reaction effect in velocity stages as described in the parent Specification, the foremost nozzle, which is opened first by the governor, is proportioned to expand the steam down to the exit pressure of the stage so as to reduce peripheral leakage. This nozzle has a smaller exit area than the others being either of less height or less width or both and preferably of a width not greater than the pitch of the rotor blading. The exit angle is also smaller than that of the other nozzle and the wall between this nozzle and the next is of a thickness to provide that the steam jets meet each other at the entrance edges of the running blades.
Patent GB-274876-A (GB)
IPC: C10L5/10
Filed: 1927-07-20
Abstract: 274,876. Koks-und Halbkoks-Brikettierungs Ges. July 24, 1926, [Convention date], Composition fuel.-In briquetting lignite, coal, anthracite, and like unearbonized fuel with from 3 to 6 per cent of clay, together with waste sulphite liquor or cellulose pitch, the clay is very finely ground preferably in a colloid mill, or a thorough suspension in water may be employed. The material mixed with clay, which may be highly plastic such as is contained in the overburden of lignite mines, may be moistened with dilute liquor or clay finely ground or as a thin slime is treated with the liquor to form an emulsion-like mixture which is added to the material which in this instance may include coke and semi-coke. A suitable waterproofing chemical may be added before pressing or the briquettes may be roasted or kiln-dried. The binding substances without water may be mixed with the material to be briquetted and the mixture moistened, pressed and warmed with steam in a steam kneading plant. Specification 260,655 is referred to.
Patent GB-475206-A (GB)
Title: Improvements relating to tools for cutting the hooves of cattle
IPC: A01L15/00
Filed: 1936-07-11
Abstract: 475,206. Cutters. NEIL, J. M. July 11, 1936, No. 19287. [Class 61 (ii)] [Also in Group XIV] A tool for cutting hooves of cattle has a knife edge 6 on one arcuate jaw and a co-operating shear edge 7 on the other.
Patent GB-244016-A (GB)
Title: Improvements in dissected-block puzzles
IPC: A63F9/12
Filed: 1925-08-01
Abstract: 244,016. Humphrey, J. A. Aug. 1, 1925. No Patent granted (Sealing fee not paid). Puzzles.-A dissected block puzzle comprises a rectangular Mock, Fig. 1, cut horizontally and vertically along lines 7, 9, 11, 13 to form a centre core 1, Fig. 3, extending the whole length of the block, and outer sections 2, 3, which are cut transversely on a line 14. Assembly of the block may be simplified by characters marked on the sections.
Patent GB-1042415-A (GB)
Title: Apparatus for continuous heat sealing of plastics sheeting
Inventor: MANHART GERNOT
IPC: B29C65/00
Filed: 1964-05-11
Abstract: 1,042,415. Closing filled bags. BADISCHE ANILIN- & SODA-FABRIK A.G. May 11, 1964, No. 19508/64. Addition to 980,085. Heading B8C. [Also in Division B5] The apparatus for heat sealing plastics sheeting of the parent Specification is modified in that the jet used for the hot air treatment of the sealing zone of the sheeting 8 comprises a rectangular jet surface 5 in which the jet openings 6 comprise a plurality of bores evenly distributed over the whole of the surface 5 which is bounded by walls on its edges so that the walls 2, 4, 7 perpendicular to the surface 5 extend beyond it in the direction of the sealing zone. The hot air is supplied through a pipe 10 and after passing through the openings 6 collects in a space 9. As shown in Fig. 3, the sheeting 8 passes between a pair of opposed hot air jets 11 and then between two motor-driven rollers 12 having a toothed profile 15 and which are preferably made of aluminium. To solidify the seal, the sheeting 8 passes between a pair of opposed cold air jets 13 supplied with cold air through a pipe 14.
Patent GB-404303-A (GB)
Title: An improved acceleration and gradient meter
IPC: G01C9/08
Filed: 1932-07-11
Abstract: 404,303. Accelerometers; gradient meters. BREWERTON, A. E., 39, Higher Drive, Purley, Surrey. July 11, 1932, No. 19538. [Class 106 (iii).] In a gradient meter for use in a vehicle, the acceleration force acting upon one gravity controlled member is neutralized while a second gravity controlled member is responsive to acceleration, means being provided for indicating the displacement between the two members. One member 5 of a differential gear is loose on the shaft 8 and is driven by worm gear 3, 4 from an impeller 1 driven by the air correspondingly to the speed of the aeroplane. The bevel wheel 6 turns to a sleeve 9 which is free on the shaft 8. The other member 7 of the differential gear is fast with a flywheel 10 loose on the shaft 8 which is carried in brackets 11, 12. Attached to the sleeve 9 is a pendulum 13, 14 which carries an engraved quadrant 15 co-operating with a fixed pointer 16 and with a pointer 17 on a second pendulum 18. The quadrant is toothed to drive an air-beater 20. The pendulum 18 is carried by a sleeve 22 free on the shaft 8 and geared to an air-beater 25. By suitably proportioning the masses of the flywheel 10 and the pendulum 14, the drive from the impeller 1 is utilized to neutralize the acceleration force on the pendulum due to the movement of the aeroplane the pendulum 14 thus hanging vertically under all normal conditions, and the inclination of the machine is given by the reading of the pointer 16. The reading given by the pointer 17 gives the acceleration. To adapt the machine to a railway vehicle, the shaft 2 is driven from the wheels. In a modification two arms pivot on a shaft supported at right angles to the direction of travel of the vehicle and carry a shaft on which rotates a fly-wheel which is geared to a wheel on the first shaft which is driven by a gear so that the accelerator component is neutralized as before.
Patent GB-220944-A (GB)
Title: An electro-galvanic method of, and electrolytic bath for, applying protective coverson electric conductors, especially metals
IPC: C25D9/06
Filed: 1924-08-18
Abstract: 220,944. Mellquist, J. H. Aug. 18, 1924.. Lead and manganese peroxides, depositing.-A protecting coating is deposited on a metal or other electric conductor such as carbon by employing it as anode in the electrolysis of an alkaline or ammoniacal solution of a lead or manganese salt of an oxy-carboxylic acid such as tartaric acid. The bath may be prepared by dissolving first 150 gms. of sodium hydrate and then 450 gms. of potassium bitartrate in 10 litres of water. 400- 500 gms. of finely pulverized lead oxide together with some manganese oxide or manganese hydrate is then added and the mixture is stirred and heated, if necessary; the undissolved residue is then allowed to settle. In a second example, the bath is composed of 500 gms. sodium potassium tartrate, 50-100 gms. sodium hydrate, 400-500 gms. lead oxide, and 10 litres of water. The anode should be freed from fat before electrolysis by a sand-blast or chemical treatment. It should preferably be given a matt surface. If an iron anode is used it may be treated with 10 per cent nitric acid and the remaining carbon removed by brushing or otherwise. After deposition the anode is washed first with cold and then with hot water and dried. The deposit may be coated with paraffin wax or pyroxylin varnish which produces a deep-black colour. Undissolved lead oxide at the bottom of the bath is stirred at the end of the operation and Is only renewed when it is all consumed. Articles for subsequent use as electrodes are given a thicker coating than for rust-prevention.
Patent GB-140845-A (GB)
Title: Improvements in and relating to foot and leg wear
IPC: A43B3/02
Filed: 1918-11-27
Abstract: 140,845. Kruse, J. S. Nov. 27, 1918. Top boots.-The boot described in Specification 16676/15 is now provided with an outer covering or upper c', the lower edge of which is secured between the inner and outer soles; the edges of the upper overlap and are secured by straps. To strengthen the boot, shields f, m, j, preferably of metal, are inserted in pockets formed by stitching pieces g, o, k of material to the upper c'.
Patent GB-498609-A (GB)
Title: Improvements in or relating to means for checking the time of closure of receptacles
IPC: E05B43/00
Filed: 1937-07-15
Abstract: 498,609. Time - checking apparatus. BULLOUGH, F. July 15, 1937, No. 19593. [Class 106 (iv)] Means for checking the time of attachment of a closed receptacle to a frame member comprises clockwork carried on the frame and connected to time-indicating means by a pinion carried on a pivoted arm, the arm being automatically rocked at the time of attachment of the receptacle in a closed state to break the connection between the clockwork and the time-indicating means. The device is seen in front elevation in Fig. 4, and in side elevation in Fig. 8. The receptacle 1 has a top 2 shaped to engage rails 3 on a cover 4. The top also has a hinged lid 5 and a hinged keeper 7 which slides through a slot 9 in a frame or base member 10 on which most of the mechanism is carried. When the receptacle is attached (from the right in Fig. 8 and from the front in Fig. 4) the keeper 9 displaces a spring-held stop 41 from beneath the end 40 of a lever 29 pivoted at 30. The lever 29 is then rocked clockwise by a spring 35 to engage the end 40 with a hole in the keeper and thus to lock the receptacle to the device. The arm 29 also acts by means of a cam end 33 on an arm 22 to swing this arm clockwise to the position shown and so to disengage a pinion 20 pivoted on the arm 22 from a pinion 26. A shaft 16 is driven by clockwork and drives hour and minute hands. The pinion 20 on the arm 22 is always engaged with a pinion (not shown in Fig. 4) secured to the shaft 16. Before the attachment of the receptacle, the pinion 20 drives the pinion 26 which drives further hour and minute hands on its shaft 24. The attachment of the receptacle thus stops these further hands, the pinion 26 being locked by a pawl 37 rocked by the lever 29. Access to the shaft 30 to move it by hand to lift the lever 29 and release the receptacle can be had only when the cover 4 is removed. A latching bar is pivoted to the back of the cover and can be swung from outside the cover to engage notched members secured to the base 10. A pawl is pivoted to the latch and has a notch which engages a flange on a graduated wheel 51, Fig. 5, driven from the clockwork through a friction drive 48. The wheel 51 has a gap 54 in its flange and the latching bar can be swung to release the cover only when the pawl is in the gap 54. Thus the cover can be removed only at a certain predetermined time. The clockwork can be held stopped by a shaft 66 rotated anticlockwise from outside the casing to start the clockwork. When this is done, a pin 73 on a lever 74 falls into a notch 72 in a disc on the shaft 66 so that the clockwork cannot be stopped until the cover is removed to reset the lever 74. Specification 336,700, [Class 106 (iv)], is referred to.
Patent GB-1146523-A (GB)
Title: Compound tube
IPC: B29C48/09
Filed: 1966-05-04
Abstract: 1,146,523. Compound tube. MANNESMANN A.G. 4 May, 1966 [4 May, 1965], No. 19630/66. Heading F2P. A compound tube comprises a steel tube 1 covered by an outer layer 2 of powdered plastics material 0À1 to 0À5 mm. thickness sintered on to the tube and an extruded plastics material 3 thereon. The plastics material may be polyethylene and the layer 3 may be cylindrical or, as shown, formed by winding on to the rotating tube a polyethylene strip produced in an extruder, the temperature of the sintered layer effecting welding, and pressing by pressure rolls to smooth out the winding junctions. Further layers of extruded strip are then applied, with the optional use of adhesives.
Patent GB-206893-A (GB)
Title: Improvements in or relating to means for starting internal combustion engines
IPC: F02N1/00
Filed: 1922-07-18
Abstract: 206,893. Pyrah, H. A. July 18, 1922. Turning-gear.-A starting-handle 1, which is disconnected if the engine turns backwards, has a boss 1<a> secured to the end of the clutch shaft 2 and provided with sliding pawls 4 held by springs 5 in engagement with ratchet teeth 7 on the end face of a sleeve 6 within an extension 1<b> of the boss 1<a>. Studs 8 on the sleeve 6 engage inclined slots 11 in a fixed sleeve 10. If the engine starts backwards, the sleeve 6 is rotated by the pawls 4 and is moved axially by the studs 8 and slots 11, disengaging the clutch 3 from the engine shaft.
Patent GB-1486147-A (GB)
Title: Ballpoint pen
IPC: B43K7/10
Filed: 1975-05-09
Abstract: 1486147 Ballpoint pen GILLETTE CO 9 May 1975 [20 May 1974] 19710/75 Heading B6P Writing ball 26 is connected to the absorbent filler 18 of a reservoir containing aqueous ink by a porous feeder rod 30 of bonded polymeric filamentary material, such as nylon, the filaments being expandable in the presence of the ink to flex and exert a yielding pressure on the writing ball against body 10 by way of connection 17. The rod 30 extends into metallic tip 20, where it abuts against a stop shoulder and is separated from the writing ball by fluorocarbon disc 35. Preferably the disc is of polytetrafluorethylene.
Patent GB-973975-A (GB)
Title: Improvements in or relating to electric switches
Inventor: BOOTH GEOFFREY LISTER
IPC: H01H9/16
Filed: 1962-05-23
Abstract: 973,975. Mechanical switches, without quick action. PAINTON & CO. Ltd. May 21, 1963 [May 23, 1962], No. 19883/62. Heading H2B. A thumb-wheel switch comprises a plate 1 carried by a strip 4 by means of tongues 3 entering slots 5 and screws 6 engaging tapped lugs 2. The switch-operating member comprises a wheel 8 on a pivot 9 riveted to plate 1, and having its periphery protruding from a window slot 7 in strip 4. The wheel 8 is moulded with an annular recess 20 and a toothed central boss for co-operation with a ball detent 25. The rim of the wheel carries coloured translucent indicia which are illuminated by a lamp 23, the lamp and detent being mounted on the plate 1 and accommodated within the recess 20. On the side opposite the annular recess 20 the wheel has a boss 21 which extends through a circular aperture in a printed circuit board (not shown) and carries a bridging contact for wiping over printed fixed contacts (Fig. 4, not shown). The board is mounted parallel to the plate 1 by screws passing through spacer sleeves into tapped holes 26 in the plate 1. A stop 24 on plate 1 co-operates with a stop 18 projecting into the recess from the rim of wheel 8 to limit rotation in each direction.
Patent GB-652372-A (GB)
Title: Improvements in or relating to electromagnetic contactors
IPC: H01H51/06
Filed: 1947-07-24
Abstract: 652,372. Electromagnetic switches. IGRANIC ELECTRIC CO., Ltd. July 24,1947, No. 19903. Convention date, Dec. 15, 1944. [Class 38(v)] An electromagnetic contactor has a conical-shaped stationary core 43 which is engaged by a conical recess in the movable plunger 60 while a flange 61 on the plunger simultaneously engages the inner flange of an annular cupped steel washer 57, the magnetic circuit being completed through a steel shell 39. To obtain the above simultaneous engagement, the washer 57 is during construction, slid along the shell 39 by the plunger 60 till the latter engages the core 43, after which the washer and shell are soldered or welded to each other. Forced into a hole in the plunger is a sleeve into which is screwed a pin 76 which carries the movable contact member. This consists of a plate of copper 66 carrying silver contact tips adapted to engage similar fixed contact tips 29. The plate 66 is carried by an insulating bushing 80 having a spherical surface which engages a corresponding surface of a member 82 mounted on the pin 76. Springs 85 and 75 are arranged as shown, and the arrangement provides for selfalignment of the contacts.
Patent GB-790458-A (GB)
Title: Adaptors for electric discharge devices having wire leads
IPC: H01J9/42
Filed: 1956-06-27
Abstract: 790,458. Holders for thermionic valves. GENERAL ELECTRIC CO. June 27, 1956 [June 28, 1955]. No. 19903/56. Class 38 (1). An adaptor for wire terminal valves comprises a resilient member 7 rotatably mounted on an insulating part 6 by a stud 20, the arrangement being that the valve leads 3 are inserted into eyelets 17 and into prongs 11 in member 7 and part 6, respectively, and the member 7 then rotated until leads 3 contact the walls of prongs 11, Fig. 4. Member 7 is locked in this position by its inherent resilience and by the engagement of tabs in a skirt secured to, or integral with member 7 with slots in part 6 (Fig. 2, not shown), or by some other means. A key 13 for orienting the adaptor in a holder is provided and stop-means for ensuring the initial alignment of eyelets 17 and prongs 11 may be provided.